Henry stenz



Patented Apr. u, |899.' H. STENZ.A ELECTRIC LIGHT RADIATDR.

(Application led Mar. 20, 1898.)

(No Model.)

THE uowms Pneus ao, Pnurourum wAsmNnroN, 1.1v c.

NrTED STATES PATENT OFFICE.

HENRY STENZ, OF FARIBAULT, MINNESOTA, ASSIGNOR OF ONE-HALF TO 'JOSEPH J. WEYER, OF SAME-PLACE.'

ELECTRIC-LIG HT RADIATOR.

SPECIFICATION forming part of Letters .Patent No. 622,785, dated April 11, 1899.

Application filed March 26, 1898.

To all whom, t puny concern:

Beit known that I, HENRY STENZ, a citizen of the United States, residing at Faribault, in the county of'Rice and State of Minnesota, have invented a new and useful Electric-Light Radiator, of which the following is a specification.

One of the chief objections urged against electric-arc lights is the casting of deep shadows by the vertical f rame-bars and the difficulty experienced `in reaching the electrodes when it is required to trim the lamp. It is the purpose of the present invention to provide simple and novel means for overcoming these objectionable features and to diffuse the light, so that the deep shadows usually cast by the frame bars will be dissipated and whereby the carbons can be quickly and easily reached when it is required to trim the lamp.

The invention resides in a globe composed of prism or ribbed or corrugated glass or suitabletranslucent material, said globe having a movable sect-ion constituting a door which can be turned aside, so as to expose the electrodes and permit of ready access thereto when it is required to trim the lamp or for any other desired purpose.

For a full understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the following description. y

The ilnprovementis susceptible of various changes in the form, proportion, and the minor details of construction'without departing from the principle or sacrificing any of the advantages thereof, and to a full disclosure of the invention an adaptation thereof is shown.

in the accompanying drawings, in which- Figure l is a View in elevation of an electric-arc lamp provided with a globe embodying the characteristic features of the invention. Fig. 2 is a horizontal section on the line X X of Fig. 4, looking upward, the full lines showing the door open and the dotted lines the closed position of the door. Fig. 3 is a plan section on the line Y Y of Fig. 4. Fig. 4 is a vertical section. Fig. 5 shows some of the may forms in which the sections of the globe may be constructed.

Corresponding and like parts are referred to in the following description and indicated' Serial No. 675,278. (No model-3 in the several views of the drawings by the same reference characters.

The electric-arc lamp illustrated is of ordinary construction and comprises a casing l, inclosing the feeding mechanism for the upper carbon, a plate 2, having a socket to re- -ceive the lower carbon, and connecting rods or bars 3 between the casing and plate 2.

The globe, which constitutes the chief feature of the invention,is supported by means of the plate 2 or in any convenient way, according to the style and variety of lamp with which it is used. The globe consists of similarly-formed upper and lower frames and interposed sections 4, of glass or translucent material capable of use in this connection. The sections comprising the body of the globe may be corrugated, uted, ribbed, crimped, or similarly formed, so as to insure a dilfusion of the rays of light, thereby obviating the casting of deep shadows by the framebars 3 or like means employed for connecting the part-s of the lamp carrying the upper and lower electrodes. The outline of the sections will depend upon the configuration and design of the globe, and, as shown, the globe is contracted at its lower end. Hence the globesections are correspondingly deflected at their lower ends, so that thesections unitedlypro vide a globe of the desired pattern.

The upper and lower frames 5 are channeled in their opposing faces to receive the edges of the sections 4, and the channels have lugs 6 to enter notches in the globe-sections and retain them in place and have corresponding lugs 7, which are apertured for the reception of the rods or bolts 8, by means of which the upper and lower frames are connected. Corresponding parts of the upper and lower frames are made separable, as shown at 9, and, with the globe-section applied thereto, constitute a door which can be thrown aside when access to the electrodes is desired. This door maybe movable in any direction, and, as shown, it is hinged at one end by means of bolts or pins l0, passing through corresponding apertured lugs formed with the movable' sections 9 and at one end of the frames intercepted by the opening which is closed by the door. Extensions 1l are provided at the free ends of the movable IOO i 9 and the frame are sufficiently loose to admit of the door receiving a limited Vertical movement at its free end, whereby the parts ll may enter and leave the depressions of the parts l2.

Within the spirit of the invention it is immaterial whether the globe is placed exterior or interior to the frame-bars 3 and it is contemplated to apply luted, ribbed, o r crimped glass or translucent material to any globe in suoli relation as to .diffuse the rays of light and prevent the casting of shadows.

Having thus described my invention, what is claimed as new, and desired to be secured vby Letters Patent, is-

l. In a globe for electricarc lamps, the combination of upper and lower frames, comprising corresponding hinged sections which are provided at their free ends with extensions, offstanding projections at the ends ot' the frames against which the free ends of the hinged sections close recessed in their top sides and adapted to receive the said eXtensions ofthe hinged sections, and fluted, ribbed or corrugated translucent sections secured between corresponding parts of the upper and lower frame, substantially as and for the purpose set forth.

2. A globe for electric-arc lamps comprising upper and lower frames of different size, and integral globe-sections crimped or corrugated and secured between said frames and having the end portion adjacent to the smaller frame contracted, lsubstantially as set forth.

3. A globe for electric-arc lamps consisting of upper and lower frames of diierent size having corresponding hinged sections, globesections corrugated or crimped and fitted between said frames and having an end' portion contracted, and tie-rods for securing the said frames together and holding the integral crimped globe-sections between them, substantially as described.

ln testimony that I claim the foregoing as my own I-have hereto a'fliXed my signature in the presence of two witnesses.

HENRY STENZ.

Witnesses:

Jos. J. WEYER, ANsoN L. KEYES. 

